 On November 16, 2009, it was announced that Mercedes would buy Brawn.They purchased 75% which gave them the controlling stake in the 2009 championship-winning team Brawn GP.The team, renamed and branded Mercedes GP, debuted at the 2010 Bahrain Grand Prix, with an all-German driver line-up of Nico Rosberg and Michael Schumacher and was their full return to factory sponsored motorsport in F1.